GOLUB CAPITAL BDC, Inc. SEC filings GBDC
GOLUB CAPITAL BDC, Inc. has 1,000 filings in SEC EDGAR's recent list, going back to Dec 17, 2012. Its latest annual report, Form 10-K, was filed on Nov 18, 2025 for the period ended Sep 30, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 3, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 6, 2026 (results of operations). The company's fiscal year ends on September 30.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Aug 11, 2026 | Aug 7, 2026 |
| 4 | Insider transaction | Aug 11, 2026 | Aug 7, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 13, 2026 | — |
| 4 | Insider transaction | May 29, 2025 | May 27, 2025 |
| 4 | Insider transaction | May 29, 2025 | May 27, 2025 |
| 3 | Initial insider ownership | May 5, 2025 | May 2, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 2, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 10, 2025 | — |
| 4 | Insider transaction | Dec 23, 2024 | Dec 20, 2024 |
| 4/A | Form 4/a | Dec 6, 2024 | Aug 9, 2024 |
| 4 | Insider transaction | Sep 13, 2024 | Sep 11, 2024 |
| 4 | Insider transaction | Sep 9, 2024 | Sep 5, 2024 |
| 4 | Insider transaction | Sep 9, 2024 | Sep 5, 2024 |
| 4 | Insider transaction | Sep 5, 2024 | Sep 3, 2024 |
| 4 | Insider transaction | Sep 5, 2024 | Sep 3, 2024 |
| 4 | Insider transaction | Sep 3, 2024 | Aug 29, 2024 |
| 4 | Insider transaction | Sep 3, 2024 | Aug 29, 2024 |
| 4 | Insider transaction | Aug 29, 2024 | Aug 28, 2024 |
| 4 | Insider transaction | Aug 29, 2024 | Aug 28, 2024 |
| 4 | Insider transaction | Aug 28, 2024 | Aug 26, 2024 |
| 4 | Insider transaction | Aug 28, 2024 | Aug 26, 2024 |
| 4 | Insider transaction | Aug 26, 2024 | Aug 22, 2024 |
| 4 | Insider transaction | Aug 26, 2024 | Aug 22, 2024 |
| 4 | Insider transaction | Aug 22, 2024 | Aug 20, 2024 |
| 4 | Insider transaction | Aug 22, 2024 | Aug 20, 2024 |
| 4 | Insider transaction | Aug 20, 2024 | Aug 16, 2024 |
| 4 | Insider transaction | Aug 20, 2024 | Aug 16, 2024 |
| 4 | Insider transaction | Aug 12, 2024 | Aug 8, 2024 |
| 4 | Insider transaction | Jun 11, 2024 | Jun 11, 2021 |
| 4 | Insider transaction | Jun 11, 2024 | Jun 7, 2024 |
| 4 | Insider transaction | Jun 5, 2024 | Jun 3, 2024 |
| 4 | Insider transaction | Jun 5, 2024 | Jun 3, 2024 |
| 4 | Insider transaction | Jun 5, 2024 | Jun 3, 2024 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 15, 2024 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 11, 2024 | — |
| 4 | Insider transaction | May 30, 2023 | May 25, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 19, 2023 | — |
| 4 | Insider transaction | Aug 30, 2022 | Aug 26, 2022 |
| 4 | Insider transaction | Mar 4, 2022 | Mar 2, 2022 |
| 4 | Insider transaction | Mar 4, 2022 | Mar 2, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 13, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 5, 2022 | — |
| 4 | Insider transaction | Dec 15, 2021 | Dec 14, 2021 |
| 4 | Insider transaction | Dec 15, 2021 | Dec 13, 2021 |
| 3 | Initial insider ownership | Sep 17, 2021 | Sep 13, 2021 |
| 3 | Initial insider ownership | Aug 30, 2021 | Feb 5, 2021 |
| 4 | Insider transaction | Aug 13, 2021 | Aug 11, 2021 |
| 4 | Insider transaction | Aug 13, 2021 | Aug 11, 2021 |
| 4 | Insider transaction | Aug 11, 2021 | Aug 9, 2021 |
| 4 | Insider transaction | Aug 11, 2021 | Aug 9, 2021 |
| 4 | Insider transaction | Aug 9, 2021 | Aug 5, 2021 |
| 4 | Insider transaction | Aug 9, 2021 | Aug 5, 2021 |
| 4 | Insider transaction | Aug 5, 2021 | Aug 3, 2021 |
| 4 | Insider transaction | Aug 5, 2021 | Aug 3, 2021 |
| 4 | Insider transaction | Aug 3, 2021 | Jul 30, 2021 |
| 4 | Insider transaction | Aug 3, 2021 | Jul 30, 2021 |
| 4 | Insider transaction | Jul 30, 2021 | Jul 28, 2021 |
| 4 | Insider transaction | Jul 30, 2021 | Jul 28, 2021 |
| 4 | Insider transaction | Jul 28, 2021 | Jul 26, 2021 |
| 4 | Insider transaction | Jul 28, 2021 | Jul 26, 2021 |
| 4 | Insider transaction | Jul 26, 2021 | Jul 22, 2021 |
| 4 | Insider transaction | Jul 26, 2021 | Jul 22, 2021 |
| 4 | Insider transaction | Jul 22, 2021 | Jul 20, 2021 |
| 4 | Insider transaction | Jul 22, 2021 | Jul 20, 2021 |
| 4 | Insider transaction | Jul 20, 2021 | Jul 16, 2021 |
| 4 | Insider transaction | Jul 20, 2021 | Jul 16, 2021 |
| 4 | Insider transaction | Jul 16, 2021 | Jul 14, 2021 |
| 4 | Insider transaction | Jul 16, 2021 | Jul 14, 2021 |
| 4 | Insider transaction | Jul 14, 2021 | Jul 12, 2021 |
| 4 | Insider transaction | Jul 14, 2021 | Jul 12, 2021 |
| 4 | Insider transaction | Jul 12, 2021 | Jul 8, 2021 |
| 4 | Insider transaction | Jul 12, 2021 | Jul 8, 2021 |
| 4 | Insider transaction | Jul 8, 2021 | Jul 6, 2021 |
| 4 | Insider transaction | Jul 8, 2021 | Jul 6, 2021 |
| 4 | Insider transaction | Jul 6, 2021 | Jul 1, 2021 |
| 4 | Insider transaction | Jul 6, 2021 | Jul 1, 2021 |
| 4 | Insider transaction | Jul 1, 2021 | Jun 29, 2021 |
| 4 | Insider transaction | Jul 1, 2021 | Jun 29, 2021 |
| 4 | Insider transaction | Jun 29, 2021 | Jun 25, 2021 |
| 4 | Insider transaction | Jun 29, 2021 | Jun 25, 2021 |
| 4 | Insider transaction | Jun 25, 2021 | Jun 23, 2021 |
| 4 | Insider transaction | Jun 25, 2021 | Jun 23, 2021 |
| 4 | Insider transaction | Jun 23, 2021 | Jun 21, 2021 |
| 4 | Insider transaction | Jun 23, 2021 | Jun 21, 2021 |
| 4 | Insider transaction | Jun 21, 2021 | Jun 17, 2021 |
| 4 | Insider transaction | Jun 21, 2021 | Jun 17, 2021 |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 4 | Insider transaction | Jun 15, 2021 | Jun 11, 2021 |
| 4 | Insider transaction | Jun 15, 2021 | Jun 11, 2021 |
| 4 | Insider transaction | Jun 11, 2021 | Jun 9, 2021 |
| 4 | Insider transaction | Jun 11, 2021 | Jun 9, 2021 |
| 4 | Insider transaction | Jun 9, 2021 | Jun 7, 2021 |
| 4 | Insider transaction | Jun 9, 2021 | Jun 7, 2021 |
| 4 | Insider transaction | Jun 7, 2021 | Jun 3, 2021 |
| 4 | Insider transaction | Jun 7, 2021 | Jun 3, 2021 |
| 4 | Insider transaction | Jun 3, 2021 | Jun 1, 2021 |
| 4 | Insider transaction | Jun 3, 2021 | Jun 1, 2021 |
| 4 | Insider transaction | Jun 1, 2021 | May 27, 2021 |
| 4 | Insider transaction | Jun 1, 2021 | May 27, 2021 |
| 4 | Insider transaction | May 27, 2021 | May 25, 2021 |
| 4 | Insider transaction | May 27, 2021 | May 25, 2021 |
| 4 | Insider transaction | May 25, 2021 | May 21, 2021 |
| 4 | Insider transaction | May 25, 2021 | May 21, 2021 |
| 4 | Insider transaction | May 21, 2021 | May 19, 2021 |
| 4 | Insider transaction | May 21, 2021 | May 19, 2021 |
| 4 | Insider transaction | May 19, 2021 | May 17, 2021 |
| 4 | Insider transaction | May 19, 2021 | May 17, 2021 |
| 4 | Insider transaction | May 17, 2021 | May 13, 2021 |
| 4 | Insider transaction | May 17, 2021 | May 13, 2021 |
| 4 | Insider transaction | May 13, 2021 | May 11, 2021 |
| 4 | Insider transaction | May 13, 2021 | May 11, 2021 |
| 4 | Insider transaction | Apr 7, 2021 | Apr 5, 2021 |
| 4 | Insider transaction | Apr 7, 2021 | Apr 5, 2021 |
| 4 | Insider transaction | Apr 5, 2021 | Apr 1, 2021 |
| 4 | Insider transaction | Apr 5, 2021 | Apr 1, 2021 |
| 4 | Insider transaction | Apr 1, 2021 | Mar 30, 2021 |
| 4 | Insider transaction | Apr 1, 2021 | Mar 30, 2021 |
| 4 | Insider transaction | Mar 30, 2021 | Mar 26, 2021 |
| 4 | Insider transaction | Mar 30, 2021 | Mar 26, 2021 |
| 4 | Insider transaction | Mar 26, 2021 | Mar 24, 2021 |
| 4 | Insider transaction | Mar 26, 2021 | Mar 24, 2021 |
| 4 | Insider transaction | Mar 24, 2021 | Mar 22, 2021 |
| 4 | Insider transaction | Mar 24, 2021 | Mar 22, 2021 |
| 4 | Insider transaction | Mar 22, 2021 | Mar 18, 2021 |
| 4 | Insider transaction | Mar 22, 2021 | Mar 18, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 16, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 16, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 16, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 12, 2021 | Mar 10, 2021 |
| 4 | Insider transaction | Mar 12, 2021 | Mar 10, 2021 |
| 4 | Insider transaction | Mar 10, 2021 | Mar 8, 2021 |
| 4 | Insider transaction | Mar 10, 2021 | Mar 8, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 14, 2021 | — |
| 4 | Insider transaction | Jan 8, 2021 | Jan 6, 2021 |
| 4 | Insider transaction | Jan 8, 2021 | Jan 6, 2021 |
| 4 | Insider transaction | Jan 6, 2021 | Jan 4, 2021 |
| 4 | Insider transaction | Jan 6, 2021 | Jan 4, 2021 |
| 4 | Insider transaction | Jan 4, 2021 | Dec 30, 2020 |
| 4 | Insider transaction | Jan 4, 2021 | Dec 30, 2020 |
| 4 | Insider transaction | Dec 30, 2020 | Dec 28, 2020 |
| 4 | Insider transaction | Dec 30, 2020 | Dec 28, 2020 |
| 4 | Insider transaction | Dec 28, 2020 | Dec 24, 2020 |
| 4 | Insider transaction | Dec 28, 2020 | Dec 24, 2020 |
| 4 | Insider transaction | Dec 23, 2020 | Dec 22, 2020 |
| 4 | Insider transaction | Dec 23, 2020 | Dec 22, 2020 |
| 4 | Insider transaction | Dec 22, 2020 | Dec 18, 2020 |
| 4 | Insider transaction | Dec 22, 2020 | Dec 18, 2020 |
| 4 | Insider transaction | Dec 18, 2020 | Dec 16, 2020 |
| 4 | Insider transaction | Dec 18, 2020 | Dec 16, 2020 |
| 4 | Insider transaction | Dec 16, 2020 | Dec 14, 2020 |
| 4 | Insider transaction | Dec 16, 2020 | Dec 14, 2020 |
| 4 | Insider transaction | Dec 14, 2020 | Dec 10, 2020 |
| 4 | Insider transaction | Dec 14, 2020 | Dec 10, 2020 |
| 4 | Insider transaction | Dec 10, 2020 | Dec 8, 2020 |
| 4 | Insider transaction | Dec 10, 2020 | Dec 8, 2020 |
| 4 | Insider transaction | Dec 8, 2020 | Dec 4, 2020 |
| 4 | Insider transaction | Dec 8, 2020 | Dec 4, 2020 |
| 4 | Insider transaction | Dec 4, 2020 | Dec 2, 2020 |
| 4 | Insider transaction | Dec 4, 2020 | Dec 2, 2020 |
| 4 | Insider transaction | Dec 2, 2020 | Nov 30, 2020 |
| 4 | Insider transaction | Dec 2, 2020 | Nov 30, 2020 |
| 4 | Insider transaction | Nov 30, 2020 | Nov 25, 2020 |
| 4 | Insider transaction | Nov 30, 2020 | Nov 25, 2020 |
| 4 | Insider transaction | Nov 25, 2020 | Nov 24, 2020 |
| 4 | Insider transaction | Nov 25, 2020 | Nov 24, 2020 |
| 4 | Insider transaction | Nov 24, 2020 | Nov 20, 2020 |
| 4 | Insider transaction | Nov 24, 2020 | Nov 20, 2020 |
| 4 | Insider transaction | Nov 20, 2020 | Nov 18, 2020 |
| 4 | Insider transaction | Nov 20, 2020 | Nov 18, 2020 |
| 4 | Insider transaction | Nov 18, 2020 | Nov 16, 2020 |
| 4 | Insider transaction | Nov 18, 2020 | Nov 16, 2020 |
| 4 | Insider transaction | Nov 16, 2020 | Nov 12, 2020 |
| 4 | Insider transaction | Nov 16, 2020 | Nov 12, 2020 |
| 4 | Insider transaction | Nov 12, 2020 | Nov 10, 2020 |
| 4 | Insider transaction | Nov 12, 2020 | Nov 10, 2020 |
| 4 | Insider transaction | Nov 10, 2020 | Nov 6, 2020 |
| 4 | Insider transaction | Nov 10, 2020 | Nov 6, 2020 |
| 4 | Insider transaction | Nov 6, 2020 | Nov 4, 2020 |
| 4 | Insider transaction | Nov 6, 2020 | Nov 4, 2020 |
| 4 | Insider transaction | Nov 4, 2020 | Nov 2, 2020 |
| 4 | Insider transaction | Nov 4, 2020 | Nov 2, 2020 |
| 4 | Insider transaction | Nov 2, 2020 | Oct 29, 2020 |
| 4 | Insider transaction | Nov 2, 2020 | Oct 29, 2020 |
| 4 | Insider transaction | Oct 29, 2020 | Oct 27, 2020 |
| 4 | Insider transaction | Oct 29, 2020 | Oct 27, 2020 |
| 4 | Insider transaction | Oct 27, 2020 | Oct 23, 2020 |
| 4 | Insider transaction | Oct 27, 2020 | Oct 23, 2020 |
| 4 | Insider transaction | Oct 23, 2020 | Oct 21, 2020 |
| 4 | Insider transaction | Oct 23, 2020 | Oct 21, 2020 |
| 4 | Insider transaction | Oct 21, 2020 | Oct 19, 2020 |
| 4 | Insider transaction | Oct 21, 2020 | Oct 19, 2020 |
| 4 | Insider transaction | Oct 19, 2020 | Oct 15, 2020 |
| 4 | Insider transaction | Oct 19, 2020 | Oct 15, 2020 |
| 4 | Insider transaction | Oct 15, 2020 | Oct 13, 2020 |
| 4 | Insider transaction | Oct 15, 2020 | Oct 13, 2020 |
| 4 | Insider transaction | Oct 13, 2020 | Oct 9, 2020 |
| 4 | Insider transaction | Oct 13, 2020 | Oct 9, 2020 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Listed as
- GBDC (Nasdaq)
- Fiscal year ends
- September 30
- Incorporated in
- DE
- Headquarters
- New York, NY
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1476765
- Former names
- GOLUB CAPITAL INVESTMENT Corp (until Jun 2, 2017); Golub Capital BDC LLC (until Apr 14, 2010)
Source: SEC EDGAR filings. This is company-reported data, not investment advice.